This name is a synonym of Fimbristylis hygrophila Gordon-Gray.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 217205) with original publication details: Mitt. Bot. Staatssamml. München 10: 547 1971.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:297793-1.
This name was in version 1 of The Plant List, record kew-217205, and has not been changed.